Pressure-generator.



No. 727,067. v PATEN'II'ED MAY 5, i903. G. E. BLAKE & a. M. BBL'L.

PRESSURE GENERATOR. APPLICATION FILED JAN. 2'], 1902.

IZ A 0 l2 /z 655/4 Wxigesszs 11382910115 V; I I I I w UNITED STATESPatented May 5, 1903.

ATENT 'YFFICE.

PRESSURE-GENERATOR.

' SPECIFICATION forming part of Letters Patent No. 727,067, dated May5,19Q3.

Application filed January 27, 1902. ,Serial No. 91,406. (No model.)

To etZZ whom it nuty cor warn:

Be it known that we, GEORGE EDWARD BLAKE and CARROLL MELVIN BELL,citizens of the United States, residing at Greencastle in the county ofPutnam and State of Indiana,

have invented a new and useful Pressure-Generator,of which the followingis a specification.

The object of our invention is to provide an improved generator forproducing a supply of is fluid under high pressure.

A further object of the invention is to so construct a generator of thiskind as to prevent the admixture of a fresh charge of explosive compoundwith gases already exploded and under pressure. 7

A still further object is to provide for the removal of all of theexploded gases from a generator before a fresh charge is exploded.

A still further object is to provide a gena erator which will be whollyautomatic in' its operation.

With these and other objects in view the invention consists in the novelconstruction and arrangement of parts hereinafter de scribed, andillustrated in the accompanying drawings and pointed outin the appendedclaims.

In the drawings, Figureis a sectional elevation of a pressure-generatorconstructed in accordance with our invention, illustrating the positionof the movable partition or pis 1011 when the generator is filled withexploded gas under pressure. Fig. 2 is a similar view illustrating theposition of the movable par- 5 tition or piston immediately after theexplosion of a charge.

1 indicates a chamber, preferably cylindrical in form and having anupper head 2 and a lower. head 3, the only outlet from the 0 chamberbeing through a pipe 4, which leads to an engine of any character or toother motor where the pressure is to be utilized. Fitting closely in thechamber is the verticallymovable partition 5, which may be provided withpacking-rings, if necessary, there being an opening 6 extending throughsaid partition to permit of the passage of gas when the partition is inthe elevated position illustrated in Fig. 2. The opening 6 is normallyclosed by a Valve 7, carried bya valve-stem 8, adapted to a suitableguide or support, the Valve being moved to the closed position(illustrated in Fig. 1) when the partition reaches the-lower end ofthechamber andbeing movedto the open position (illustrated in Fig; 2) whenthe partition is at the top of the chamber. Connected to the lower head3 is a mixing-chambe r 9, into which extend a gas-pipe 10 and anair-pipe 11, the gas and air being forced from a tank or other source ofsupply under a pressure sufficient to elevate the movable 'partition,and each pipe being provided with suitable check-valves 12 topreventback'pressure on thetank. The construction of this portion of themechanism may be similar'to that employed for the introd uction ofanexplosive charge to the cylinder of a gas-engine, the explosivemixture being in the form ofcarbureted air or gas ora fixed gas mixedwith any suitable proportion of air.

At a point near the top of the chamber 1 is arranged a pair ofelectrodes 14, forming the terminals of a sparking-circuit, the circuitbeing closed-in any suitable manner by auxiliary mechanism or by themovement of the partition. The sparking device is situated in a recessat one side of the chamber at such a point that on the upward travel ofthe partition the latter will be passing the sparking device and the topof its valve-stem will be in operative contact with the top of thechamber to cause an opening movement of the valve.

In operation, the partition and valve being in the position illustratedin Fig. 1, an explosive charge is forced into the chamber below thepartition, causing said partition to travel to the top of the chamber,the valve being retained in the closed position by the pressure of thecharge. As the partition reaches the point illustrated in Fig. 2 thecharge is exploded. The valve beingthen remains at high pressure in thatportion of the chamber above the piston. As the engine or other deviceutilizes this pressure a gradual reduction is efiected until thepressure becomes less than that of the explosive mixture in the tank orother source of.supply. The check valve or valves then openautomatically and raise the partition, gradually forcing the explodedgases out through the pipe 4: until the partition reaches the upper endof the chamber and the fresh charge is exploded.

The construction is such that the fresh charge is kept separate from theexploded gases, a much greater pressure being produced than Would bepossible if the fresh charge were diluted with the exploded gases.

While the construction herein described, and illustrated in theaccompanying drawings, presents the preferred form of generator, it isobvious that various changes in the form, proportions, size, and minordetails of the structure may be made Without departing from the spiritor sacrificing any of the advantages of our invention.

Having thus described our invention, what We claim is 1.Apressure-generatorcomprisingachamber having an inlet for an explosivecharge and an outlet for exploded gas, means for ex-o ploding thecharge, and a valved partition disposed in said chamber and serving toseparate the explosive charge from the exploded gas, said partitionbeing movable in one direction by gravity and in the opposite directionby the pressure of an explosive charge.

2. Apressure-generatorcomprisingachamber having at its lower portion aninlet for an explosive charge and at its upper portion an outlet forexploded gas, means for exploding the charge, and a valved partitionarranged in said chamber and movable in one direction by gravity and inthe opposite direction by the pressure of the explosive charge.

8. A pressure-generator comprising a eham ber having an inlet for anexplosive charge and an outlet for exploded gas, means for exploding thecharge, a partition disposed in said chamber and movable in onedirection by gravity and in the opposite direction by the pressure ofthe explosive charge, and a valved passage in said partition for placingin communication the portions of the chamber on opposite sides of saidpartition.

4. A pressure-generator comprising a chamber having an outlet forexploded gas, a pipe for conveying to said chamber an explosive charge,means for exploding the charge, a movable partition having a port orpassage therethrongh, and a valve carried by said partition and adaptedto be moved to opened and closed positions by contact with the upper andlower heads of the generator.

5. The combinationinapressure-generator, of a cylindrical casing havingat one end an inlet for an explosive charge and at the opposite end anoutlet for exploded gas, a freelymovable partition disposed in saidchamber and serving to separate the fresh charge from the exploded gas,an automatic valve carried by said partition and movable to open andclosed positions at opposite ends of the cylinder by contact With thecylinder-heads, and an igniting device in communication with the chamberat a point near the upper end thereof.

In testimony that we claim the foregoing as our own we have heretoaffixed our signatures in the presence of two witnesses.

GEORGE EDlVARD BLAKE. CARROLL MELVIN BELL.

.Witnesses:

MYRTLE BRooKs, 0. S. SULLIVAN.

